diff --git a/AGENTS.md b/AGENTS.md
index d6e1218f..fd5d3f1c 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -6,6 +6,55 @@ React on Rails demo app — a Rails application with React, Redux, Tailwind CSS,
 
 - `prompts/`: shared prompt templates for Codex, GPT, and other non-Claude tools
 
+## Build and Test Commands
+
+```bash
+# Run development server
+bin/dev
+
+# Run tests
+bundle exec rspec
+
+# Run linting
+bundle exec rubocop
+
+# Auto-fix linting issues
+bundle exec rubocop -a
+```
+
 ## Working Rules
 
 - When the user asks to address PR review comments, follow `prompts/address-review.md`.
+- Run Ruby, Bundler, Node, pnpm, and git hook-sensitive commands through `bin/conductor-exec` so non-interactive shells use the project tool versions.
+
+## Conductor Compatibility
+
+Conductor runs commands in a non-interactive shell that does not source `.zshrc`.
+That means version manager shell hooks, such as mise PATH reordering from `.tool-versions`,
+may not run. Commands can accidentally use system Ruby or Node instead of the project versions.
+
+Symptoms include:
+
+- `ruby --version` returns system Ruby instead of the project Ruby.
+- Pre-commit hooks fail with the wrong tool versions.
+- `bundle` commands fail due to incompatible Ruby versions.
+- Node or pnpm commands use the wrong Node version.
+
+Use the wrapper for commands that depend on project tool versions:
+
+```bash
+# Instead of:
+ruby --version
+bundle exec rubocop
+pnpm install
+git commit -m "message"
+
+# Use:
+bin/conductor-exec ruby --version
+bin/conductor-exec bundle exec rubocop
+bin/conductor-exec pnpm install
+bin/conductor-exec git commit -m "message"
+```
+
+The wrapper uses `mise exec` when mise is available and falls back to direct execution
+for non-mise users.